Lifespan of transmission fluid? - Page 2 - Mazda3 Forums : The #1 Mazda 3 Forum
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post #11 of 14 (permalink) Old 07-01-2015, 12:59 PM
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Join Date: Jun 2015
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Originally Posted by m3iguy View Post
Personally I've settled on the technique of partial tranny fluid replacement - draining however much comes out of the pan and refilling that same amount. Although this method doesn't completely replace the fluid, I believe it's effective when done along with every one or two oil changes. JMO, based on personal experience and lots of research.
This is my preferred method too. I've been doing it with my Wrangler for quite a while. Its ATX runs notoriously hot, especially when offroading. Sump temps of 200+ are not uncommon without an aftermarket cooler.
I stick one of these...

...down the dip stick tube and suck out some fluid, then refill.
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post #12 of 14 (permalink) Old 12-28-2018, 07:18 PM
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Join Date: Apr 2018
Location: Austin, Tx
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Waste of money

Originally Posted by zoomie View Post
The transmission fluid gets changed every 40K miles, give or take 5K miles. It's due soon, actually...
Waste of money.
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post #13 of 14 (permalink) Old 12-29-2018, 09:46 AM
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post #14 of 14 (permalink) Old 12-29-2018, 05:50 PM
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Originally Posted by geeboss View Post
too lazy to read 26 pages but mercon v is not mazda v
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